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United States Patent | 6,267,459 |
Becker ,   et al. | July 31, 2001 |
Endless track laying work machines are provided with a pair of track roller assemblies positioned on opposite sides of the work machine. Each track roller assembly includes an endless rubber belt entrained around a drive wheel, an idler wheel, and a plurality of supporting mid-rollers. An automatic belt alignment system is utilized to align the endless rubber belt during operation of the endless track laying work machine (10). The automatic belt alignment system also provides connection of the idler wheel assembly to a tensioning system and to the forwardly extending nose portion of a track roller frame.
Inventors: | Becker; Dan J. (Peoria, IL); Keehner; Daniel M. (Peoria, IL) |
Assignee: | Caterpillar Inc. (Peoria, IL) |
Appl. No.: | 460029 |
Filed: | December 13, 1999 |
Current U.S. Class: | 305/193; 305/116; 305/125; 305/143; 305/155 |
Intern'l Class: | B62D 055/30; B62D 055/14; B62D 025/16 |
Field of Search: | 305/116,125,143,153,155,193,195,136,138 |
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Foreign Patent Documents | |||
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